D1212121212131323331312323132322331313232233132313223313233313231313331323131   >>    D121212121213132333131232313232233131323223313231322331323331323131333132313   <<    D1212121212131323331312323132322331313232233132313223313233313231313331323133   >>      D1212121212131323331312323132322331313232233132313223313233313231313331323132   >>